European Solar Observatory Sunspot Databases and Solar Physics

Welcome to the homepage of the Heliophysical Observatory, Debrecen

The observatory is part of the Konkoly Thege Miklós Astronomical Institute (Konkoly Observatory) of the Research Centre for Astronomy and Earth Sciences of the Hungarian Academy of Sciences. The observatory conducts
scientific research in the fields of solar activity, heliospheric processes and solar-terrestrial connections. The main products of the observatory are the most detailed existing sunspot databases.
These are produced from ground-based observations and from space-borne observations taken by the SOHO/MDI and SDO/HMI instruments.

2017-07-01 | Debrecen Photoheliographic Data (DPD) Sunspot Catalog – Update:The final version of Debrecen Photoheliographic Data for the years 2014 and 2002 has been published recently
(see the summary table of the Debrecen solar databases).
If you have any requests, comments, questions, or suggestions on the Debrecen solar databases, please mail to baranyi.tunde[at]science.unideb.hu

2017-04-13 | Recently a few articles have been published on the databases and the history of the observatory:BARANYI, T., GYŐRI, L., LUDMÁNY, A.: 2016, On-line Tools for Solar Data Compiled in the Debrecen Observatory and their Extensions with the Greenwich Sunspot Data,
Solar Phys., 291, Issue 9-10, pp. 3081-3102,
doi:10.1007/s11207-016-0930-1,
arXiv e-print